Maria Shriver was finally starting to accept Miley Cyrus, 22, as her son's girlfriend, but after these new sexy photos hit the Internet, which involve Patrick Schwarzenegger licking the singer, she might be whistling a different tune.

The 'Wrecking Ball' singer posed with her 21-year-old beau in a photo-booth at a friend's birthday party, and of course, she was rocking her signature tongue pose. But, Patrick clearly has a tongue pose of his own — and it involves licking Miley's face!

Did we mention there was a lot of alcohol consumed at this party? Miley's friend shared a bunch of pics on Instagram from the wild night along with a giant bottle of tequila and captioned the photo, "Great friends, good food and even better drinks."

(Photo Credit: Instagram)

Let's get a closer look at those pics, shall we?

(Photo Credit: Instagram)

(Photo Credit: Instagram)

Sure, sure, she's just being Miley, but this is exactly the kind of behavior that Patrick's mother judged her for originally. Sources say the mother was initially "horrified" by their relationship, but Patrick has done a great job at changing her mind.

“Patrick has done a marvelous job in turning Maria from being violently opposed to now saying she’s a sweet girl and she was really mistaken from not knowing her and only knowing about her from her press,” the source said.